Simulating Natural Selection

If you're about to leave a comment saying that faster creatures aren't actually less efficient, read this first. I presented that part a bit strangely. At 2:14, I say moving quickly is less efficient, giving the example of a creature moving a unit distance in half the time, using twice the energy. Then, at 4:53, I show a formula for the energy cost per unit time, which depends on the square of the creature's speed. I gave distance per time, energy per time, and distance per energy at separate parts of the video, and that was confusing. So here's a more explicit summary. If we double a creature's speed... - its distance per time is doubled (the definition of speed) - its energy per time is quadrupled (because it depends on the square of speed) - its distance per energy is halved: (2x distance per time) / (4x energy per unit time) That last bullet is the "efficiency" from the video. With its starting energy for a day, a 2x-speed creature can only travel half the distance.

Man cut the food to a tenth, started a mass famine and said ‘Hm’ when they all died lmao

we now know the secret to immortality: just eat food every day

In all seriousness, this should be shown in classrooms. It really does explain topics very very well providing a visual and being able to see it really helps rather than just reading it.

I'm a biologist and researcher in cell biology. I just discovered this channel and I have to say it is possibly the best way out there to quickly learn and understand how evolution works. Amazing modeling. Thanks!

I'd like to thank my larger human friends for not eating me.

I bet those blobs are like -dude, what's the meaning of life -I think we live in a simulation -what a stupid theory

I'm an Evolutionary Biologist and man this is great popularization of science. Keep up the good work

Your videos are amazing and I watch them in my free time! Your simulations are amazing because you integrate them so well into what you are talking about and I really admire that.

I'm glad the YouTube algorithm is evolving and finally recommended me something good.

Can we have a moment of silence for the blobs that never made it back home?

Why can’t my science teachers play things like this, this was incredibly interesting and had my attention entirely!

This is easily my favorite Primer video, I came back often to see it again haha I love this experimentation, I would love to do some runs by myself on different environments, it looks so much fun!

"The other day I came across somebody that more than 20% larger than me. It's a good thing I had better sense and better speed. That was scary. I guess I'm truly living on the edge!" - Blob

Well I'm just going to click that little red rectangular button and hope it shows me more like this.

I'm not fully sure what i started to watch but it look beautiful :D I love how the colors change with the generations and the time laps just look so beautiful that way! You for sure explain all this very well and it seems as interesting type of simulator. And also the way its visualized look really good. Just looks so good.

First video of yours I’ve ever watched, and as soon as it ended you got my subscribe bro, great content love it

awesome!

"Let's see what happens when we change the environment more explicitly. Let's go to ten food each day." -J. V. Stalin, 1932

Extremely well done! The implementation with Blender is very impressive! Such high-quality content! These ten minutes of effort should be worthwhile in any classroom!